Western Digital WD Red Plus 8TB NAS Hard Drive – WD80EFPX (3.5" SATA, CMR)
The Western Digital WD Red Plus 8TB (WD80EFPX) is a 3.5-inch SATA hard drive built for RAID-optimized NAS systems with up to 8 drive bays, using CMR recording technology for stable, predictable performance in small and medium business storage setups.
Compatibility
This drive is designed to sit inside a NAS enclosure, not to run standalone in a laptop or as a portable drive. It uses a standard SATA connection, so it fits any RAID-optimized NAS chassis built for up to 8 bays — including desktop NAS units from brands such as Synology, QNAP, TerraMaster and Asustor that use standard 3.5" SATA drive trays. If you're unsure whether it fits your specific enclosure, check that your NAS accepts standard 3.5" SATA drives before ordering.
Specs at a glance
- Capacity: 8TB
- Model number: WD80EFPX
- Form factor: 3.5-inch internal drive, SATA connector
- Recording technology: CMR (Conventional Magnetic Recording)
- Speed and cache: 5640 RPM, 256MB cache, transfer rate up to 215MB/s
- Workload rating: 180TB/year, rated for 1M hours MTBF
What's included
Each order is one (1) WD Red Plus 8TB internal drive (WD80EFPX). No cables, mounting brackets, or enclosure are included — this is the bare internal drive only, for installation inside your existing NAS unit.
Why this drive
CMR recording (rather than SMR) is the recording method NAS and RAID builders generally look for, because it handles sustained read/write and RAID-rebuild workloads more predictably. This drive is backed by a 3-year limited warranty from Western Digital, and is rated for 24/7 operation in small-to-medium business NAS environments — not just occasional desktop backup use.
Is the WD80EFPX compatible with my NAS?
It's built for RAID-optimized NAS systems with up to 8 drive bays and uses a standard SATA connection, so it fits any NAS enclosure designed for 3.5" SATA drives. Always confirm your specific NAS model accepts standard 3.5" SATA bays before buying, since bay count and drive-size support vary between NAS brands and models.
What does CMR mean, and why does it matter for a NAS drive?
CMR (Conventional Magnetic Recording) writes data in non-overlapping tracks, which generally gives more consistent, predictable performance for RAID rebuilds and sustained read/write workloads than SMR (Shingled Magnetic Recording) drives. This WD80EFPX uses CMR, which is the recording type most NAS and RAID setups are built around.
Can I use this drive in a regular desktop PC instead of a NAS?
Yes, it will physically work in a desktop PC with a free 3.5" SATA bay, but it's designed and rated for 24/7 NAS workloads rather than typical desktop use. If you only need a drive for a single desktop PC rather than a NAS/RAID array, a desktop-class WD drive may be a better fit for your use case.
How many drives or bays does this support in a RAID array?
WD rates this drive for RAID-optimized NAS systems with up to 8 bays. The actual number of drives and RAID level you can run depends on your specific NAS enclosure and how you configure it, not on the drive itself.
Is this a new drive, and what warranty comes with it?
It comes with Western Digital's 3-year limited warranty as listed on the product specifications. If you need confirmation on drive condition (new/retail packaging) before ordering, contact us directly and we can confirm before you buy.
How much data can this drive handle day-to-day?
It's rated for a 180TB/year workload with a 1M hours MTBF rating, which reflects sustained business-level NAS use rather than occasional home backups. In practical terms, this means it's built to run continuously in a small business NAS setup, not just switched on for occasional file transfers.
Will this work with Synology, QNAP, TerraMaster or Asustor NAS units?
It uses a standard 3.5" SATA connection like the vast majority of NAS drive bays from these brands, so it's generally compatible with SATA-based NAS enclosures. As with any NAS purchase, check your specific model's supported drive list or bay specifications first, since we can't guarantee brand-specific certification beyond the SATA/bay-count specs listed here.
What size and weight is this drive, will it fit my NAS bay?
It measures 5.79" x 4" x 1.03" and weighs 715 grams, which is the standard footprint for a 3.5-inch internal SATA drive — it will fit any NAS bay built for standard 3.5" drives.
